National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Mostly Cloudy

33°F

1°C

Humidity 78%
Wind Speed SE 5 mph
Barometer 30.09 in (1019.0 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 19 Feb 7:54 pm EST
Extended Forecast for

Watertown MA

Winter Weather Advisory February 20, 10:00am until February 21, 07:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Cloudy

  • Friday

    Friday: Rain and snow before 4pm, then rain and snow, possibly mixed with sleet after 5pm. High near 38. Calm wind becoming east 5 to 9 mph in the afternoon. Chance of precipitation is 90%. New snow and sleet accumulation of less than a half inch possible.

    High: 38 °F

    Slight Chance
    Snow then
    Wintry Mix

  • Friday Night

    Friday Night: Rain, snow, and sleet before 9pm, then snow, possibly mixed with sleet between 9pm and 10pm, then snow after 10pm. Low around 29. East wind 6 to 10 mph becoming north after midnight. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.

    Low: 29 °F

    Wintry Mix
    then Snow

  • Saturday

    Saturday: Snow or light snow likely before 7am, then light snow likely, mainly between 7am and 9am. Cloudy, with a high near 33. Northeast wind around 7 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 33 °F

    Snow Likely

  • Saturday Night

    Saturday Night: A chance of light snow before 8pm, then a chance of snow between 8pm and 3am. Mostly cloudy, with a low around 23. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 23 °F

    Chance Light
    Snow

  • Sunday

    Sunday: A slight chance of snow after 1pm. Mostly cloudy, with a high near 36. Northeast wind 5 to 9 mph. Chance of precipitation is 20%.

    High: 36 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A chance of snow. Cloudy, with a low around 27. Northeast wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    Low: 27 °F

    Chance Snow

  • Monday

    Monday: A chance of snow. Cloudy, with a high near 34. North wind 11 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.

    High: 34 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 22. Northwest wind around 7 mph.

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 27. Calm wind.
Friday
Rain and snow before 4pm, then rain and snow, possibly mixed with sleet after 5pm. High near 38. Calm wind becoming east 5 to 9 mph in the afternoon. Chance of precipitation is 90%. New snow and sleet accumulation of less than a half inch possible.
Friday Night
Rain, snow, and sleet before 9pm, then snow, possibly mixed with sleet between 9pm and 10pm, then snow after 10pm. Low around 29. East wind 6 to 10 mph becoming north after midnight. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.
Saturday
Snow or light snow likely before 7am, then light snow likely, mainly between 7am and 9am. Cloudy, with a high near 33. Northeast wind around 7 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
A chance of light snow before 8pm, then a chance of snow between 8pm and 3am. Mostly cloudy, with a low around 23. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
A slight chance of snow after 1pm. Mostly cloudy, with a high near 36. Northeast wind 5 to 9 mph. Chance of precipitation is 20%.
Sunday Night
A chance of snow. Cloudy, with a low around 27. Northeast wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Monday
A chance of snow. Cloudy, with a high near 34. North wind 11 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 22. Northwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 35. Northwest wind 6 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 15. West wind around 6 mph.
Wednesday
A chance of rain. Mostly cloudy, with a high near 39. South wind 5 to 9 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. South wind around 7 mph. Chance of precipitation is 50%.
Thursday
A chance of rain. Partly sunny, with a high near 44. Southwest wind 7 to 9 mph. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Watertown MA
 42.37°N 71.16°W (Elev. 46 ft)
Last Update:
5:35 pm EST Feb 19, 2026
Forecast Valid:
8pm EST Feb 19, 2026-6pm EST Feb 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation